[maven-release-plugin] prepare release github-pullrequest-0.0.1-beta13
[maven-release-plugin] prepare release github-pullrequest-0.0.1-beta13

jenkinsci/github-pullrequest-plugin,jenkinsci/github-pullrequest-plugin,KostyaSha/github-integration-plugin,KostyaSha/github-integration-plugin,jenkinsci/github-integration-plugin,KostyaSha/github-integration-plugin,KostyaSha/github-integration-plugin,jenkinsci/github-integration-plugin,jenkinsci/github-integration-plugin,jenkinsci/github-pullrequest-plugin